Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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The Role of Be Addition on Glass Forming Ability and Plasticity of Zr-Cu-Al Ternary Amorphous Alloy System

Zr-Cu-Al 3원계 비정질 합금의 형성능 및 소성에 미치는 Be의 역할

  • Shin, Sang-Soo (Division for Dongnam Area Technology Service, Korea Institute of Industrial Technology) ;
  • Lim, Kyoung-Mook (Division for Dongnam Area Technology Service, Korea Institute of Industrial Technology) ;
  • Kim, Eok-Soo (Division for Dongnam Area Technology Service, Korea Institute of Industrial Technology)
  • 신상수 (한국생산기술연구원 동남권기술지원센터) ;
  • 임경묵 (한국생산기술연구원 동남권기술지원센터) ;
  • 김억수 (한국생산기술연구원 동남권기술지원센터)
  • Received : 2010.03.30
  • Accepted : 2010.04.15
  • Published : 2010.04.30
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Abstract

Bulk amorphous alloys with reasonable glass forming ability and large plasticity were found in Zr-Cu-Al alloys. Further increase in the GFA and the ductility is expected by appropriately choosing a fourth element. In this study, we select Be as the fourth element and added to the Zr-Cu-Al system to synthesize $(Zr_{57.4}Cu_{38.1}Al_{4.5})_{100-x}Be_x$(x=0~16) alloys and the glass forming ability and the plasticity were measured. With Be addition, the supercooled liquid region (${\Delta}T_x$), the plasticity and GFA as high as $134^{\circ}C$, 20.5%, 7 mm, respectively, can be obtained. Herein, we present the effect of Be addition on the variations of various mechanical properties and thermal characteristics of the $(Zr_{57.4}Cu_{38.1}Al_{4.5})_{100-x}Be_x$ alloys.

Keywords

References

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